Highly Sensitive Superconducting Quantum-Interference Proximity Transistor (Articolo in rivista)

Type
Label
  • Highly Sensitive Superconducting Quantum-Interference Proximity Transistor (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevApplied.2.024005 (literal)
Alternative label
  • Ronzani, Alberto; Altimiras, Carles; Giazotto, Francesco (2014)
    Highly Sensitive Superconducting Quantum-Interference Proximity Transistor
    in Physical Review Applied
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ronzani, Alberto; Altimiras, Carles; Giazotto, Francesco (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale delle Ricerche (CNR); Scuola Normale Superiore di Pisa Scuola Normale Super Pisa, I-56127 Pisa, Italy (literal)
Titolo
  • Highly Sensitive Superconducting Quantum-Interference Proximity Transistor (literal)
Abstract
  • We report the design and implementation of a high-performance superconducting quantum-interference proximity transistor based on aluminum-copper technology. With the adoption of a thin and short copper nanowire, we demonstrate full phase-driven modulation of the proximity-induced minigap in the normal-metal density of states. Under optimal bias, we record unprecedentedly high flux-to-voltage (up to 3 mV/Phi(0)) and flux-to-current (exceeding 100 nA/Phi(0)) transfer function values at subkelvin temperatures, where Phi(0) is the flux quantum. The best magnetic-flux resolution (as low as 500n Phi(0)/root Hz at 240 mK being limited by the room-temperature preamplification stage) is reached under fixed current bias. These figures of merit combined with ultralow power dissipation and micrometer-size dimensions make this mesoscopic interferometer attractive for low-temperature applications such as the investigation of the magnetization of small spin populations. (literal)
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